Gap detector of constant velocity universal joint driving shaft assembly

Abstract

The invention relates to the technical field of driving shaft clearance detection, and discloses a clearance detector for a constant velocity universal joint driving shaft assembly, which comprises a driving assembly, the driving assembly comprises an electric telescopic rod fixedly connected to the side wall of a base, one end, far away from the base, of the electric telescopic rod is fixedly connected with a mounting plate, and during formal work, a power supply of the electric telescopic rod is switched on; the gear moving outwards rotates under the limitation of the toothed bar and forces the second bevel gear to rotate, the rotating second bevel gear drives the rotating ring to rotate in the same direction through the transmission assembly, the rotating rotating ring drives the fixing head to twist one end of the driving shaft, and the twisting detection procedure is carried out. The laser recorder detects the rotation angle of the scale teeth and records the change of the rotation angle by the gap in the outward extension process of the driving shaft, so that the equipment can record the torsion angle brought by the gap in real time, and the accuracy of data is improved.

Description

Technical Field

[0001] The invention relates to the technical field of drive shaft clearance detection equipment, in particular to a clearance detector for a constant velocity universal joint drive shaft assembly. Background Art

[0002] Since the fixed joint is composed of various parts such as the housing, the retaining frame, the star sleeve, etc., which are matched in sequence with clearances, and there are some gaps between the various parts, the gaps between the various parts will become larger or smaller when subjected to force. The difference between the maximum value and the minimum value of the gap is called the axial clearance of the fixed joint; the parts at one end of the fixed joint are connected to other parts of the automobile transmission structure except the constant velocity joint drive shaft assembly, and the star sleeve at the other end of the fixed joint is connected to the intermediate shaft through a spline. The matching tolerance of the spline is called the axial clearance between the fixed joint and the intermediate shaft; for the axial clearance of the fixed joint, usually, the gaps between the various parts of the fixed joint are stretched to the maximum distance manually, and the maximum value of the gap is measured at this time; then the gaps between the various parts of the fixed joint are compressed to the minimum distance, and the minimum value of the gap is measured, and then the axial clearance of the fixed joint is obtained by subtracting the maximum distance value from the minimum distance value, and the axial clearance between the fixed joint and the intermediate shaft is usually roughly estimated by manual, and finally the clearance of the constant velocity joint drive shaft assembly is obtained by adding the obtained value to the axial clearance of the fixed joint.

[0003] However, when the above design is used, the axial clearance data of the fixed joint obtained is the data when the fixed joint is fully merged and fully expanded. However, in actual vehicle applications, the fixed joint is rarely fully opened or closed. The obtained data is not sufficient for application in actual application scenarios. In response to the above problems, the following solutions are proposed. Summary of the invention

[0004] In order to solve the above technical problems, the present invention provides a gap detector for a constant velocity universal joint drive shaft assembly, comprising a fixing mechanism, wherein the fixing mechanism has an installation space inside, which is used to install and fix the drive shaft;

[0005] A driving mechanism, which is installed on the side wall of the fixing mechanism and provides driving force for the device to perform a torsion test on the driving shaft;

[0006] A transmission mechanism, which is fixedly arranged on the side wall of the driving mechanism and is used to convert the force generated by the driving mechanism into a torsional force on the driving shaft;

[0007] Among them, before use, the driving shaft is clamped and restricted at the top of the fixing mechanism, and the force of the driving mechanism operation is converted into a torsional force on the driving shaft through the transmission mechanism at any time to carry out the detection link.

[0008] Preferably, the interior of the fixing mechanism includes a base, and the fixing mechanism includes:

[0009] The clamping assembly, the outer wall of the clamping assembly is fixedly connected to the inner wall of the groove of the base, and is used to fix and limit the driving shaft;

[0010] The limiting assembly, the limiting assembly is fixedly arranged on the side wall of the base, and is used to provide resistance to the operation of the assembly when the driving mechanism operates;

[0011] Among them, when in use, first clamp the driving shaft inside the clamping assembly, and then turn on the power supply of the driving mechanism.

[0012] Preferably, the driving mechanism includes:

[0013] The driving assembly, the side wall of the driving assembly is fixedly connected to the side wall of the base, and is used to provide power for the device;

[0014] The torsion assembly, the side wall of the torsion assembly is fixedly connected to the side wall of the driving assembly. When the driving assembly moves outward, it will drive the torsion assembly to move synchronously. The outward-moving torsion assembly will contact the outer wall of the limiting assembly and generate a rotational force, and this rotational force is transmitted to the driving shaft through the transmission mechanism;

[0015] Among them, when the torsion assembly contacts the clamping assembly, the driving mechanism will force the driving shaft to extend, and the torsion assembly provides a torsional force to test the change in the torsional angle formed by the driving shaft with different extension lengths.

[0016] Preferably, the transmission mechanism includes:

[0017] The measuring assembly, the side wall of the measuring assembly is fixedly connected to the side wall of the driving assembly, and is used to detect the torsional angle of the driving shaft in real time;

[0018] The transmission assembly, the side wall of the transmission assembly is fixedly connected to the side wall of the torsion assembly, and is used to absorb the excess torsional force;

[0019] Among them, when the torsion assembly provides a torsional force, it will be transmitted to the measuring assembly through the transmission assembly, and the measuring assembly will then transmit the torsional force to the driving shaft.

[0020] Preferably, the clamping assembly includes a clamping frame fixedly connected to the inner wall of the groove of the base, and a snap lock is fixedly connected to the side wall of the clamping frame;

[0021] Among them, before the driving shaft is used, it is placed on the inner wall of the clamping frame, then the clamping frame is covered, and the driving shaft is clamped by the snap lock to ensure that the driving shaft will not rotate or move due to the torsional force during operation.

[0022] Preferably, the limiting assembly includes a toothed rod fixedly connected to the side wall of the base, and a slide rail is provided on the inner wall of the toothed rod;

[0023] Among them, when the driving component extends outwards, it will expand outwards along the inner wall of the slide rail, and as it moves outwards, the torsion component will rotate along the outer wall of the torsion component.

[0024] Preferably, the driving component includes an electric telescopic rod fixedly connected to the side wall of the base. One end of the electric telescopic rod away from the base is fixedly connected with a mounting plate. The side wall of the mounting plate is slidably connected to the inner wall of the slide rail. A limiting frame is fixedly connected to the side wall of the mounting plate, and a laser recorder is fixedly connected to the top of the limiting frame.

[0025] Among them, when the gap inside the drive shaft is too large, the torsion force generated by the torsion component will force the drive shaft to rotate, and the laser recorder will record the rotation angle. After the extension is completely completed, the electric telescopic rod will generate a contraction force again. At this time, a reverse rotation will occur, causing the bevel gear two to drive one end of the drive shaft to twist in the reverse direction, and the angle generated by the torsion will be received by the laser recorder again, and record the change of the gap on the torsion angle during the process of the drive shaft from extension to contraction, improving the detection accuracy of the equipment.

[0026] Preferably, the torsion component includes an L-shaped plate fixedly connected to the side wall of the mounting plate. A gear is rotatably connected to the inner wall of the through hole of the L-shaped plate. A bevel gear one is fixedly connected to the side wall of the gear. A bevel gear two is rotatably connected to the side wall of the mounting plate. When officially working, the power supply of the electric telescopic rod is turned on, so that the electric telescopic rod generates an extension. The extended electric telescopic rod will drive the mounting plate and the limiting frame to move outwards along the inner wall of the slide rail. The outward moving mounting plate will drive the L-shaped plate and the gear to move outwards synchronously, so that the drive shaft changes from the Figure 2 state of J in to the state of H.

[0027] Among them, when the driving component drives the torsion component to move outwards, the rack will force the gear to rotate, and the rotating gear will force the bevel gear two to rotate.

[0028] Preferably, the measuring component includes a rotating ring rotatably connected to the inner wall of the limiting frame. A fixed head is fixedly connected to the inner wall of the rotating ring. A scale tooth is opened at the top of the fixed head. A limiting tooth groove is opened on the inner wall of the rotating ring. The outward moving gear will rotate under the restriction of the rack. The rotating gear drives the bevel gear two to rotate with the connection point as the center line through the bevel gear one. The rotating bevel gear two drives the rotating ring to rotate in the same direction through the transmission component. The rotating rotating ring will drive the fixed head to twist one end of the drive shaft, but at this time the drive shaft is restricted by the clamping frame and cannot rotate. If the fixed head still rotates at this time, the angle is generated by the gap of the drive shaft, and during this process, the laser recorder will record the change of the gap on the rotation angle during the outward extension of the drive shaft by detecting the rotation angle of the scale tooth. Through the application of the above components, the equipment can record the torsion angle brought by the gap in real time, improving the accuracy of the data.

[0029] Among them, the force for the rotation of the bevel gear II is transmitted to the limiting tooth groove through the transmission component, and the limiting tooth groove drives the fixed head to twist again.

[0030] Preferably, the transmission component includes a driving disk fixedly connected to the outer wall of the bevel gear II. Ten sliding grooves are formed in the inner wall of the driving disk. Ten blocking blocks are slidably connected to the inner walls of the ten sliding grooves. Springs are fixedly connected to the bottoms of the ten blocking blocks. The ends of the springs away from the blocking blocks are fixedly connected to the inner walls of the sliding grooves. By using the above characteristics of the rotation of the bevel gear II, a transmission component is arranged inside the device. When the bevel gear II rotates, the bevel gear II will drive the blocking blocks to roll along the inner wall of the limiting tooth groove through the driving disk. Among them, when there is a gap inside the driving shaft, the rotational force of the bevel gear II will be transmitted to the fixed head through the driving disk and the blocking blocks, and the fixed head will rotate.

[0031] Among them, the outer wall of the driving disk is in contact with the outer wall of the rotating ring. The outer wall of the bevel gear II is meshed with the outer wall of the bevel gear I. The outer wall of the gear is meshed with the outer wall of the tooth bar. After the gap disappears or the rotation is completed, at this time, the driving shaft will no longer twist. If the driving component continues to drive one end of the driving shaft to move outward, at this time, the fixed head cannot rotate, but the bevel gear II still rotates under the influence of the bevel gear I and the gear. The rotational pressure will be concentrated at the position of the blocking blocks. As the pressure increases, the blocking blocks will contract, causing the driving disk to rotate. Through the application of the above components, the redundant torsional force of the bevel gear II is effectively offset, and the continuous torsion of the bevel gear II is avoided, preventing the deformation of the driving shaft.

[0032] Among them, as the number of rotations of the torsion component increases and the driving shaft cannot be twisted again, the blocking blocks will be compressed and contract, offsetting the redundant rotational pressure.

[0033] In addition, the quantity of the above components is not limited. Those skilled in the relevant art can freely set it according to actual needs, as long as several blocking blocks are divided into two groups, and when one group is completely clamped on the inner wall of the limiting tooth groove, the other group is in a contracted state.

[0034] The present invention has the following beneficial effects:

[0035] (1) In view of the problem of inaccurate data, when the present invention is in formal operation, the power supply of the electric telescopic rod is turned on, causing the electric telescopic rod to extend. The extended electric telescopic rod will drive the mounting plate and the limiting frame to move outward along the inner wall of the slide rail, causing the drive shaft to slowly extend and driving the bevel gear II to rotate. The laser recorder will record the change in the rotation angle of the drive shaft during the outward extension by detecting the rotation angle of the scale teeth. Through the application of the above components, the device can record in real time the torsional angle caused by the clearance, improving the accuracy of the data.

[0036] (2) Taking advantage of the fact that the force required to detect the internal clearance of the drive shaft is not very large, the present invention is provided with a transmission component. After the clearance disappears or the rotation is completed, the drive shaft will no longer twist at this time, and the rotational pressure will be concentrated at the position of the blocking block. As the pressure increases, the blocking block will contract, causing the drive disk to rotate, effectively offsetting the excess torsional force of the bevel gear II and preventing the bevel gear II from continuously generating torsion and causing deformation of the drive shaft.

[0037] (3) Taking advantage of the characteristic that the above-mentioned blocking block generates sliding, two groups of blocking blocks are arranged inside the device, and the two groups of blocking blocks are designed in a staggered manner. When one group of blocking blocks is in a compressed state, the other group of blocking blocks will be in an extended state. Through the above design, when the blocking blocks slide inside the limiting tooth grooves, the mutually moving blocking blocks will offset part of the vibration caused by the elastic potential energy, reducing the influence of the internal vibration force on the laser recorder when the blocking blocks change.

[0038] (4) After the extension is completely completed, the electric telescopic rod will generate a contraction force again, causing reverse rotation at this time, so that the bevel gear II drives one end of the drive shaft to twist in the reverse direction, and the angle generated by the torsion will be received by the laser recorder again, and the change in the torsion angle of the clearance during the process of the drive shaft extending and contracting will be recorded, improving the detection accuracy of the device. Brief Description of the Drawings

[0039] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0040] Figure 1 It is a schematic diagram of the working state of the overall structure of the present invention;

[0041] Figure 2 It is a schematic diagram of the standby working state of the overall structure of the present invention;

[0042] Figure 3 It is a schematic diagram of the clamping component of the present invention;

[0043] Figure 4 For the present invention Figure 3 A magnified schematic view of A in the present invention;

[0044] Figure 5 Schematic diagram of the driving component of the present invention;

[0045] Figure 6 Cross-sectional schematic view of the torsion component of the present invention;

[0046] Figure 7 Cross-sectional schematic view of the measuring component of the present invention;

[0047] Figure 8 Internal schematic view of the measuring component of the present invention;

[0048] Figure 9 For the present invention Figure 8 A magnified schematic view of B in the present invention;

[0049] Figure 10 Schematic view of the working state of the blocking block of the present invention.

[0050] In the attached drawings, the list of components represented by each reference numeral is as follows:

[0051] In the figure: 1. Fixing mechanism; 11. Clamping component; 12. Limiting component; 13. Base; 111. Clamping frame; 112. Snap lock; 121. Rack; 122. Slide rail; 2. Driving mechanism; 21. Driving component; 22. Torsion component; 211. Electric telescopic rod; 212. Mounting plate; 213. Limiting frame; 214. Laser recorder; 221. L-shaped plate; 222. Gear; 223. Bevel gear one; 224. Bevel gear two; 3. Transmission mechanism; 31. Measuring component; 32. Transmission component; 311. Fixed head; 312. Scale teeth; 313. Rotating ring; 314. Limiting tooth groove; 321. Driving disc; 322. Chute; 323. Blocking block; 324. Spring. Detailed implementation manners

[0052] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0053] Example 1, please refer to Figure 1 - Figure 6 , the present invention is a clearance detector for a constant velocity universal joint drive shaft assembly, including a fixing mechanism 1, which has an installation space inside for installing and fixing the drive shaft;

[0054] The driving mechanism 2 is installed on the side wall of the fixing mechanism 1. The driving mechanism 2 provides driving force for the device and is used for torsional testing of the drive shaft.

[0055] The transmission mechanism 3 is fixedly arranged on the side wall of the driving mechanism 2 and is used to convert the force generated by the driving mechanism 2 into torsional force on the drive shaft.

[0056] Among them, before use, the drive shaft is clamped and restricted at the top of the fixing mechanism 1, and at any time, the force generated by the operation of the driving mechanism 2 is converted into torsional force on the drive shaft through the transmission mechanism 3 for the detection link.

[0057] The interior of the fixing mechanism 1 includes a base 13. The fixing mechanism 1 includes:

[0058] The clamping assembly 11, the outer wall of the clamping assembly 11 is fixedly connected to the inner wall of the groove of the base 13 and is used to fix and restrict the drive shaft.

[0059] The limiting assembly 12, the limiting assembly 12 is fixedly arranged on the side wall of the base 13 and is used to provide resistance for the operation of the assembly when the driving mechanism 2 operates.

[0060] Among them, during use, first clamp the drive shaft inside the clamping assembly 11, and then turn on the power supply of the driving mechanism 2.

[0061] The driving mechanism 2 includes:

[0062] The driving component 21, the side wall of the driving component 21 is fixedly equipped with the side wall of the base 13 and is used to provide power for the device.

[0063] The torsion component 22, the side wall of the torsion component 22 is fixedly connected to the side wall of the driving component 21. When the driving component 21 moves outward, it will drive the torsion component 22 to move synchronously. The outward-moving torsion component 22 will contact the outer wall of the limiting component 12 and generate a rotational force, and this rotational force is transmitted to the drive shaft through the transmission mechanism 3.

[0064] Among them, when the torsion component 22 contacts the clamping component 11, the driving mechanism 2 will force the drive shaft to extend, and the torsion component 22 provides torsional force to test the change in the torsional angle formed by the drive shaft with different extension lengths.

[0065] The transmission mechanism 3 includes:

[0066] The measuring component 31, the side wall of the measuring component 31 is fixedly connected to the side wall of the driving component 21 and is used to detect the torsional angle of the drive shaft in real time.

[0067] The transmission component 32, the side wall of the transmission component 32 is fixedly connected to the side wall of the torsion component 22, and is used to absorb the excess torsion force;

[0068] Among them, when the torsion component 22 provides the torsion force, it will be transmitted to the measurement component 31 through the transmission component 32, and the measurement component 31 will then transmit the torsion force to the drive shaft.

[0069] Embodiment 2, please refer to Figure 4 - Figure 10 , the present invention is a clearance detector for a constant velocity universal joint drive shaft assembly. On the basis of Example 1, the clamping component 11 includes a clamping frame 111 fixedly connected to the inner wall of the groove of the base 13, and a snap lock 112 is fixedly connected to the side wall of the clamping frame 111;

[0070] Among them, before the drive shaft is used, it is placed on the inner wall of the clamping frame 111, then the clamping frame 111 is covered, and the drive shaft is clamped by the snap lock 112 to ensure that the drive shaft will not rotate or move due to the torsion force during operation.

[0071] The limiting component 12 includes a toothed rod 121 fixedly connected to the side wall of the base 13, and a slide rail 122 is provided on the inner wall of the toothed rod 121;

[0072] Among them, when the driving component 21 extends outwards, it will expand outwards along the inner wall of the slide rail 122, and as it moves outwards, the torsion component 22 will rotate along the outer wall of the torsion component 22.

[0073] The driving component 21 includes an electric telescopic rod 211 fixedly connected to the side wall of the base 13. One end of the electric telescopic rod 211 away from the base 13 is fixedly connected with a mounting plate 212. The side wall of the mounting plate 212 is slidably connected to the inner wall of the slide rail 122. A limiting frame 213 is fixedly connected to the side wall of the mounting plate 212, and a laser recorder 214 is fixedly connected to the top of the limiting frame 213;

[0074] Among them, when the gap inside the drive shaft is too large, the torsion force generated by the torsion component 22 will force the drive shaft to rotate, and the laser recorder 214 will record the rotation angle. After the extension is completely completed, the electric telescopic rod 211 will generate a contraction force again. At this time, 244 will rotate in the reverse direction, so that the bevel gear two 224 drives one end of the drive shaft to twist in the reverse direction, and the angle generated by the torsion will be received by the laser recorder 214 again, and the change of the gap on the torsion angle during the process of the drive shaft from extension to contraction will be recorded, improving the detection accuracy of the device.

[0075] The torsion assembly 22 includes an L-shaped plate 221 fixedly connected to the side wall of the mounting plate 212. A gear 222 is rotatably connected to the inner wall of the through hole of the L-shaped plate 221. A bevel gear one 223 is fixedly connected to the side wall of the gear 222. A bevel gear two 224 is rotatably connected to the side wall of the mounting plate 212. During formal operation, the power supply of the electric telescopic rod 211 is turned on, causing the electric telescopic rod 211 to extend. The extended electric telescopic rod 211 will drive the mounting plate 212 and the limit frame 213 to move outward along the inner wall of the slide rail 122. The outward-moving mounting plate 212 will drive the L-shaped plate 221 and the gear 222 to move outward synchronously, so that the drive shaft moves from Figure 2 the state of J in it to the state of H;

[0076] Among them, when the drive assembly 21 drives the torsion assembly 22 to move outward, the toothed rod 121 will force the gear 222 to rotate, and the rotating gear 222 will force the bevel gear two 224 to rotate.

[0077] The measuring assembly 31 includes a rotating ring 313 rotatably connected to the inner wall of the limit frame 213. A fixed head 311 is fixedly connected to the inner wall of the rotating ring 313. A scale tooth 312 is provided at the top of the fixed head 311. A limiting tooth groove 314 is provided on the inner wall of the rotating ring 313. The outward-moving gear 222 will rotate under the restriction of the toothed rod 121. The rotating gear 222 drives the bevel gear two 224 to rotate with the connection point as the center line through the bevel gear one 223. The rotating bevel gear two 224 drives the rotating ring 313 to rotate in the same direction through the transmission assembly 32. The rotating rotating ring 313 will drive the fixed head 311 to twist one end of the drive shaft. However, at this time, the drive shaft is restricted by the clamping frame 111 and cannot rotate. If the fixed head 311 still rotates at this time, this angle is caused by the clearance of the drive shaft. During this process, the laser recorder 214 will record the change of the rotation angle caused by the clearance during the outward extension of the drive shaft by detecting the rotation angle of the scale tooth 312. Through the application of the above components, the device can record the torsion angle brought by the clearance in real time, improving the accuracy of the data.

[0078] Among them, the force of the rotation of the bevel gear two 224 is transmitted to the limiting tooth groove 314 through the transmission assembly 32, and the limiting tooth groove 314 drives the fixed head 311 to twist again.

[0079] The transmission component 32 includes a driving disk 321 fixedly connected to the outer wall of the bevel gear II 224. Ten sliding grooves 322 are formed in the inner wall of the driving disk 321. A blocking block 323 is slidably connected to the inner walls of the ten sliding grooves 322. A spring 324 is fixedly connected to the bottom of the ten blocking blocks 323. One end of the spring 324 away from the blocking block 323 is fixedly connected to the inner wall of the sliding groove 322. Utilizing the rotation characteristics of the bevel gear II 224 above, a transmission component 32 is provided inside the device. When the bevel gear II 224 rotates, the bevel gear II 224 will drive the blocking block 323 to roll along the inner wall of the limiting tooth groove 314 through the driving disk 321. Among them, when there is a gap inside the driving shaft, the rotational force of the bevel gear II 224 will be transmitted to the fixed head 311 through the driving disk 321 and the blocking block 323, and the fixed head 311 will generate rotation;

[0080] Among them, the outer wall of the driving disk 321 is in contact with the outer wall of the rotating ring 313. The outer wall of the bevel gear II 224 is meshed and connected with the outer wall of the bevel gear I 223. The outer wall of the gear 222 is meshed and connected with the outer wall of the rack 121. After the gap disappears or the rotation is completed, at this time the driving shaft will no longer twist. If the driving assembly 21 continues to drive one end of the driving shaft to move outwards, at this time the fixed head 311 cannot generate rotation, but the bevel gear II 224 still rotates under the influence of the bevel gear I 223 and the gear 222. The rotational pressure will be concentrated at the position of the blocking block 323. As the pressure increases, the blocking block 323 will contract, causing the driving disk 321 to rotate. Through the application of the above components, the excess torsional force of the bevel gear II 224 is effectively offset, preventing the bevel gear II 224 from continuously generating torsion and causing deformation of the driving shaft;

[0081] Among them, as the number of rotations of the torsion component 22 increases and the driving shaft cannot be twisted again, the blocking block 323 will be compressed and contract, offsetting the excess rotational pressure.

[0082] A specific application of this embodiment is as follows: Before using the present invention, first fix the base 13 at the required position, then place the driving shaft inside the inner wall of the clamping frame 111, and then combine the clamping component 11 and ensure that the snap lock 112 is in the locked state to ensure that the driving shaft will not rotate or move due to external forces. Subsequently, fix the telescopic end of the driving shaft inside the fixed head 311;

[0083] During formal operation, connect the power supply of the electric telescopic rod 211, causing the electric telescopic rod 211 to extend. The extended electric telescopic rod 211 will drive the mounting plate 212 and the limiting frame 213 to move outwards along the inner wall of the slide rail 122. The outward moving mounting plate 212 will drive the L-shaped plate 221 and the gear 222 to move outwards synchronously, causing the driving shaft to change from Figure 2 the state of J in Figure 1The state of H inside. Under the restriction of the rack 121, the outwardly shifted gear 222 will rotate. The rotating gear 222 drives the bevel gear two 224 to rotate with the connection point as the midline through the bevel gear one 223. The rotating bevel gear two 224 drives the rotating ring 313 to rotate in the same direction through the transmission component 32. The rotating rotating ring 313 drives the fixed head 311 to twist one end of the drive shaft. However, at this time, the drive shaft is restricted by the clamping bracket 111 and cannot rotate. If the fixed head 311 still rotates at this time, this angle is caused by the clearance of the drive shaft. During this process, the laser recorder 214 will record the change in the rotation angle caused by the clearance during the outward extension of the drive shaft by detecting the rotation angle of the scale teeth 312. Through the application of the above components, the device can record the torsional angle brought by the clearance in real time, improving the accuracy of the data.

[0084] Utilizing the rotation characteristics of the above bevel gear two 224, a transmission component 32 is provided inside the device. When the bevel gear two 224 rotates, the bevel gear two 224 drives the blocking block 323 to roll along the inner wall of the limiting tooth groove 314 through the drive disk 321. Among them, when there is a clearance inside the drive shaft, the rotational force of the bevel gear two 224 will be transmitted to the fixed head 311 through the drive disk 321 and the blocking block 323, and the fixed head 311 will rotate. After the clearance disappears or the rotation is completed, at this time, the drive shaft will no longer twist. If the drive component 21 continues to drive one end of the drive shaft to move outward, at this time, the fixed head 311 cannot rotate, but the bevel gear two 224 still rotates under the influence of the bevel gear one 223 and the gear 222. The rotational pressure will be concentrated at the position of the blocking block 323. As the pressure increases, the blocking block 323 will contract, causing the drive disk 321 to rotate. Through the application of the above components, the excess torsional force of the bevel gear two 224 is effectively offset, preventing the bevel gear two 224 from continuously generating torsion and causing deformation of the drive shaft.

[0085] Utilizing the sliding characteristics of the above blocking block 323, two groups of blocking blocks 323 are provided inside the device, and the two groups of blocking blocks 323 are designed with a dislocation. When one group of blocking blocks 323 is in a compressed state, the other group of blocking blocks 323 will be in an extended state. Through the above design, when the blocking blocks 323 slide inside the limiting tooth groove 314, the mutually moving blocking blocks 323 will offset part of the vibration brought by the elastic potential energy, reducing the influence of the internal vibration force on the laser recorder 214 when the blocking blocks 323 change.

[0086] After the extension is completely finished, the electric telescopic rod 211 will generate a contraction force again. At this time, 244 will rotate in the reverse direction, causing the bevel gear two 224 to drive one end of the drive shaft to twist in the reverse direction. The angle generated by the torsion will be received by the laser recorder 214 again, and the change in the torsion angle due to the gap during the process of the drive shaft extending and contracting will be recorded, improving the detection accuracy of the device.

[0087] The preferred embodiments of the present invention disclosed above are only used to help explain the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to the specific embodiments described. Obviously, many modifications and changes can be made according to the content of this specification. These embodiments are selected and specifically described in this specification to better explain the principles and practical applications of the present invention, so that those skilled in the art can well understand and utilize the present invention. The present invention is only limited by the claims and their full scope and equivalents.

Claims

1. A gap detector for a constant velocity universal joint drive shaft assembly, characterized in that: Also includes: A fixing mechanism (1), wherein the fixing mechanism (1) has an installation space inside, and the installation space is used to install and fix the drive shaft; A driving mechanism (2), wherein the driving mechanism (2) is installed on a side wall of the fixing mechanism (1), and the driving mechanism (2) provides a driving force for the device and is used to perform a torsion test on the driving shaft; A transmission mechanism (3), the transmission mechanism (3) being fixedly arranged on a side wall of the driving mechanism (2) and used for converting a force generated by the driving mechanism (2) into a torsional force on the driving shaft; Before use, the drive shaft is clamped and restrained at the top of the fixing mechanism (1), and the force of the operation of the drive mechanism (2) is converted into a torsional force on the drive shaft through the transmission mechanism (3) at any time to perform a detection step.

2. The gap detector of the constant velocity universal joint drive shaft assembly according to claim 1, characterized in that: The interior of the fixing mechanism (1) includes a base (13), and the fixing mechanism (1) includes: A clamping assembly (11), the outer wall of the clamping assembly (11) being fixedly connected to the inner wall of the groove of the base (13) and being used for fixing and limiting the driving shaft; A limiting component (12), the limiting component (12) being fixedly arranged on the side wall of the base (13) and used for providing resistance to the operation of the component when the driving mechanism (2) is in operation; When in use, the drive shaft is first clamped inside the clamping assembly (11), and then the power supply of the drive mechanism (2) is turned on.

3. The gap detector of the constant velocity universal joint drive shaft assembly according to claim 2, characterized in that: The driving mechanism (2) comprises: A drive assembly (21), the side wall of the drive assembly (21) and the side wall of the base (13) fixing device, used to provide power for the device; A torsion assembly (22), wherein a side wall of the torsion assembly (22) is fixedly connected to a side wall of the driving assembly (21), and when the driving assembly (21) moves outward, it drives the torsion assembly (22) to move synchronously; When the torsion assembly (22) contacts the clamping assembly (11), the driving mechanism (2) forces the driving shaft to extend, and the torsion assembly (22) provides a torsion force to test the change in the torsion angle of the driving shaft as the extension length varies.

4. The gap detector of the constant velocity universal joint drive shaft assembly according to claim 3, characterized in that: The transmission mechanism (3) comprises: A measuring component (31), the side wall of the measuring component (31) being fixedly connected to the side wall of the driving component (21) and being used for real-time detection of the torsion angle of the driving shaft; A transmission component (32), the side wall of the transmission component (32) being fixedly connected to the side wall of the torsion component (22) for absorbing excess torsion force; When the torsion component (22) provides a torsion force, it is transmitted to the measuring component (31) through the transmission component (32), and the measuring component (31) then transmits the torsion force to the drive shaft.

5. The gap detector of the constant velocity universal joint drive shaft assembly according to claim 4, characterized in that: The clamping assembly (11) comprises a clamping frame (111) fixedly connected to the inner wall of the groove of the base (13), and a snap lock (112) is fixedly connected to the side wall of the clamping frame (111); Before use, the drive shaft is placed on the inner wall of the clamping frame (111), and then the clamping frame (111) is covered, and the drive shaft is clamped by the snap lock (112) to ensure that the drive shaft will not rotate or move due to torsional force during operation.

6. The gap detector of the constant velocity universal joint drive shaft assembly according to claim 5, characterized in that: The limiting assembly (12) comprises a gear rod (121) fixedly connected to the side wall of the base (13), and a slide rail (122) is provided on the inner wall of the gear rod (121); When the driving component (21) extends outward, it will expand outward along the inner wall of the slide rail (122), and as it moves outward, the torsion component (22) will rotate along the outer wall of the torsion component (22).

7. The gap detector of the constant velocity universal joint drive shaft assembly according to claim 6, characterized in that: The driving assembly (21) comprises an electric telescopic rod (211) fixedly connected to the side wall of the base (13); one end of the electric telescopic rod (211) away from the base (13) is fixedly connected to a mounting plate (212); the side wall of the mounting plate (212) is slidably connected to the inner wall of the slide rail (122); a limiting frame (213) is fixedly connected to the side wall of the mounting plate (212); and a laser recorder (214) is fixedly connected to the top of the limiting frame (213); When the gap inside the driving shaft is too large, the torsion force generated by the torsion assembly (22) will force the driving shaft to rotate, and the laser recorder (214) will record the torsion angle.

8. The gap detector of the constant velocity universal joint drive shaft assembly according to claim 7, characterized in that: The torsion assembly (22) comprises an L-shaped plate (221) fixedly connected to the side wall of the mounting plate (212); a gear (222) is rotatably connected to the inner wall of the through hole of the L-shaped plate (221); a bevel gear 1 (223) is fixedly connected to the side wall of the gear (222); and a bevel gear 2 (224) is rotatably connected to the side wall of the mounting plate (212); When the driving assembly (21) drives the torsion assembly (22) to move outward, the gear rod (121) will force the gear (222) to rotate, and the rotating gear (222) will force the bevel gear 2 (224) to rotate.

9. A gap detector for a constant velocity universal joint drive shaft assembly according to claim 8, characterized in that: The measuring assembly (31) comprises a rotating ring (313) rotatably connected to the inner wall of the limiting frame (213); a fixed head (311) is fixedly connected to the inner wall of the rotating ring (313); a scale tooth (312) is provided on the top of the fixed head (311); and a limiting tooth groove (314) is provided on the inner wall of the rotating ring (313); The rotating force of the bevel gear 2 (224) is transmitted to the limiting tooth groove (314) through the transmission component (32), and the limiting tooth groove (314) is then twisted with the fixed head (311).

10. A gap detector for a constant velocity universal joint drive shaft assembly according to claim 9, characterized in that: The transmission component (32) comprises a driving plate (321) fixedly connected to the outer wall of the second bevel gear (224); ten slide grooves (322) are provided on the inner wall of the driving plate (321); the inner walls of the ten slide grooves (322) are slidably connected to obstruction blocks (323); the bottoms of the ten obstruction blocks (323) are fixedly connected to springs (324); one end of the spring (324) away from the obstruction block (323) is fixedly connected to the inner wall of the slide groove (322); The outer wall of the driving disk (321) is arranged in contact with the outer wall of the rotating ring (313), the outer wall of the bevel gear 2 (224) is meshedly connected with the outer wall of the bevel gear 1 (223), and the outer wall of the gear (222) is meshedly connected with the outer wall of the gear rod (121).

Images